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ðŸ“ ..
ðŸ“„ __init__.py(1.22 KB)
ðŸ“ __pycache__
ðŸ“„ _api.py(8.15 KB)
ðŸ“„ _error.py(399 B)
ðŸ“„ _soft.py(1.61 KB)
ðŸ“„ _unix.py(1.42 KB)
ðŸ“„ _util.py(594 B)
ðŸ“„ _windows.py(1.72 KB)
ðŸ“„ py.typed(0 B)
ðŸ“„ version.py(142 B)

Editing: _unix.py

from __future__ import annotations

import os
import sys
from abc import ABC
from typing import cast

from ._api import BaseFileLock

#: a flag to indicate if the fcntl API is available
has_fcntl = False
if sys.platform == "win32":  # pragma: win32 cover

class UnixFileLock(BaseFileLock, ABC):
        """Uses the :func:`fcntl.flock` to hard lock the lock file on unix systems."""

else:  # pragma: win32 no cover
    try:
        import fcntl
    except ImportError:
        pass
    else:
        has_fcntl = True

class UnixFileLock(BaseFileLock):
        """Uses the :func:`fcntl.flock` to hard lock the lock file on unix systems."""

def _acquire(self) -> None:
            open_mode = os.O_RDWR | os.O_CREAT | os.O_TRUNC
            fd = os.open(self._lock_file, open_mode)
            try:
                fcntl.flock(fd, fcntl.LOCK_EX | fcntl.LOCK_NB)
            except OSError:
                os.close(fd)
            else:
                self._lock_file_fd = fd

def _release(self) -> None:
            # Do not remove the lockfile:
            #   https://github.com/tox-dev/py-filelock/issues/31
            #   https://stackoverflow.com/questions/17708885/flock-removing-locked-file-without-race-condition
            fd = cast(int, self._lock_file_fd)
            self._lock_file_fd = None
            fcntl.flock(fd, fcntl.LOCK_UN)
            os.close(fd)

__all__ = [
    "has_fcntl",
    "UnixFileLock",
]

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Editing: _unix.py

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